Pulp-engine



(No Model.) 4 Sheets-Sheet 1.

G. MILLER.

PULP ENGINE.

No. 482,184. g Patented Sept. 6, 1892.

Witnesses: GuyomMzlLbsr Z [alas ull'iorneys (No Model.) 4 Sheets-Sheet2.

G. MILLER;

PULP ENGINE. No. 482,184. Patented Sept. 6, 1892.

FIGLZ Wbbmses: I V I Invento r; (115 (Zuyon/ Miller" Q. I by iulsJliiborlwys (No Model.) I 4 Sheets-Sheet 8.

G. MILLER. PULP ENGINE. No. 482.184. Patented Sept. 6, 1892.

a I l 5 4 Q He M Q m 0 m Q P; N

K b a I b E: 6

Invenior: vg/umsses Gag 0m Mil/Ber B- Zy/uksulfiorneya TNE mums Penna00,, mom-uma, WAENINHYUN a c (No Model.) 4 Sheets-Sheet 4.

G. MILLER.

PULP ENGINE. I No. 482,184. Patented Sept. 6, 1892.

F]&.4

Win/6.566s: Inveni'or;

UNITED STATES PATENT OFFICE.

GUYON MILLER, OF DOWVNINGTOl/VN, PENNSYLVANIA.

PULP-ENGINE.

SPECIFICATION forming part of Letters Patent No. 482,184, datedSeptember 6, 1892.

Application filed October 23 1891. Serial No. 409,588. (No model.)

T0 at whom it may concern:

Be it known that I, GUYON MILLER, a citizen of the United States, and aresident of Downingtown, Chester county, Pennsylvania, have inventedcertain Improvements in Pulp- Engines, of which the following is aspecification.

The object of my invention is to so construct a pulping-engine that itwill thoroughly pulp the material and to so arrange the parts that itscapacity will be materiallyincreased. At the same time the floor-spaceoccupied by my improved machine will be of much less area than the spaceoccupied by the machines now 1n common use.

In the accompanying drawings, Figure 1 is a side view of my improvedpulping-engine. Fig.2 is a plan View. Fig. 3 is a longitudinal sectionalView, and Fig. 4 is a transverse sectional view.

I would state at the outset that my improved engine is of a type inwhich the mid-feather or central partition forming the two passagewaysis horizontal instead of vertical. Therefore the passage-ways are oneabove the other and not arranged side by side. Consequently the width ofthe machine is greatly decreased, thus reducing the area of thefloor-space occupied.

Referring to the drawings, A is the casing,

preferably made of metal and of the shape shown, having a fiat bottomplate a, slightly inclined toward the delivery end and rounded ends a athe upper portion of the casing being open.

Situated at or about the center of the easing is the transversedisintegrating-roll B, having suitable blades 19 ot' the usual form andsecured to the roll in the usual manner. The journals 1) of this rollare adapted to boxes 0 c in guides c, secured to the exterior of thecasing A. The journals pass through elongated openings a in the casing,which are suitably closed by caps, described hereinafter. On one of thejournals is mounted a suitable driving-wheel, through which motion isimparted to the disintegrating-roll B.

Separating the easing into two sections or passages A A are twopartitions CC,one on each side of the roll B, forming amid-feather on aline with the center of the roll. Both partitions stop short of the endsof the casthe stock over the roll B, while the partition O has a curvedback fall or receiving-way 0 which removes the stock from the roll anddirects it to its course through the passage A. On the under side of thepartition 0 is a guide 0 for directing the stock from under the roll B.

Directly below the roll B is a series of disintegrating-knives d, heldin a box D in the usual manner. This box is fixed as regards anyvertical movement.

Directly above the roll B is a series of disintegrating-knives 6, heldin a vertically-movable box E. This box is so geared to the roll that itwill raise or lower with the roll when it is raised or lowered.

On each side of the box E are frames F F, the lower portions of theframes being beveled toward the knives, so that the stock will not packaround the box, but will pass through between the upper portion of therolland the upper knives. These frames are secured to the casing byclamp-bolts, which are adapted to slots in the flanges of the frames,and the frames can be adjusted toward or from the box by set-screws f.It will be seen by the above description that the roll acts inconjunction with two sets of knives, attacking the stock first in thelower passage A and then in the upper passage A. Thus the stock is actedupon twice during one circuit of the machine, and the forward motion ofthe stock is increased, owing to its being propelled both in the upperand lower passages by the roll.

I will now describe the mechanism for raising and lowering the roll andupper knifebox. On each side of the casing A is a lever G, pivoted at 'gin the present instance to one of the guide-frames c. The boxes 0 forthe trunnions of the roll are suspended from each lever by links g, asclearly shown in Fig. 1. The outer end of each lever G is connected by alink It to a vertically-adjustable screw-rod I-l, adapted to suitablebearings h on the side of the casing. Adapted to the screw-threads ofthe rods H is a not I in the form of a worm-wheel having teeth on itsperiphery engaging with the worm i. A transverse shaft 1, adapted tobearings J, caries avided with a handle 1 by which it can be turnedso'as to raise and lower the lever, and consequently raise and lower thedisintegrating-roll B.

In order to raise the upper knife-boxat the same time as the roll, andso that it will lift automatically when the roll is lifted by anyforeign matter passing between the knife and roll, I connect the upperknife-box in the following manner: The knife-boxE has two sideextensions E, through which pass rods K K. These rods are ,T-shaped attheirlowerends, so as to rest in sockets Z in levers L on each side ofthe machine. The opposite ends of the ln gs K are screw-th readed, andadapted to these screw-threads are handled-nuts 7c and jam-nuts W. Thelever L is pivoted at Z to guide-frames c or to a bracket on the easing,the opposite end of the lever being connected at Z to the link 72. andthe rod H, so that any adjustment of the rod II will not only adjust theroll lever and roll, but also the box-lever and upper knife-box. In thepresent instance I place the fulcrum of the roll-lever G nearer theconnection of the link to which is attached the roll-box than thefulcrum Z of the lever L to the connection With the upper knife-box, sothat if the roll is lifted one inch the upper knife-box is raised morethan an inch, according to the distance between the fulcrum of the leverand the weight. In the present instance I so arrange it that if the rollis raised one inch the upper knife-box will be raised two inches,leaving a clearance of an inch between the roll and upper knife-box. Theupper knife-box is mounted upon two springs m m on each sideof themachine, the springs resting upon brackets M, projecting from the casingA.

In place of the springs weighted levers may be used, being theequivalent of the springs, or indirect-acting springs may be used,whichare also the equivalent of the direct-acting spring shown.

I mount the bearings J, carrying the transverse shaftl', on the verticalrods H, as shown clearly in Fig. 1, the bearings resting upon thebrackets h at the side of the machine. The bearings are not secured tothe brackets, but are free as regards any vertical motion, so that if byaccident any foreign matter should pass between the rolls and either ofthe knives, as is often the casein pulp-engines, the bearings Jwill belifted olftheir seats as the rods H will be raised by the roll or theupper knifebox. Consequently While the roll and upper knife-box can beregulated by turning the shaft I it will not interfere with the movementof either the roll or knife-box, as above described.

In order to prevent leakage through the openings (r in the sides of thecasing,Imount on each spindle b a neat-fitting ring S. Between a flanges on the ring and the casingI insert/ a packing-ring t, and the ring Sis kept up against the packing by a lever T,fulcru med at t, havingpreferablya roller it, which bears against the flange s of the ring. Abolt u on the casing passes through an opening in the lever, and on thisbolt is a nut Q1, '50 that on screwing up this nut the lever is pressedagainst the ring, preventing any leakage between the casing and thering. At the same time this arrangement does not interfere with the freevertical movement of the ring with the roll.

The blades e of the upper knife-box are secured together and to theseparated pieces by transverse pins'e'. Some of these bolts H passthrough eyes in eyebolts e*, which extend up through the box E and areprovided with nuts a which firmly hold the blades d in the box.

20 is the outlet forthe casing andis provided with a suitable valve w,which is operated by a suitable handle 10 connected to thestemw byalever w. This valve is of'the ordinary construction.

The operation of my improved pulp-engine is as follows: The pulp isintroduced intothe machine, preferably at the end as, Fig. 3,. and

is carried forward, as indicated by thefarrows,Fig. 3, betweenthe'disintegrating-rolland the upper blade 6 and after passing through thepassage A is carried to the lower passage stock are rearranged beforebeingpresented to the knives. Thus I am enabled to thoroughlydisintegrate the stock in an even manner throughout. The upper knivesmore readily disintegrate the light stock and the lower knives act morereadily upon the heavy 7 stock. If any foreign matter-such as a piece ofmetalshould by accident enter the machine, it would be drawn towardtheroll and carried thereunder, raising the roll Without injuring anyportion of the machine, and when the metal passes the roll itwouldremain undisturbedin the lower passage, to be removed when the machineis cleaned.

In some instances I may construct a machine in which the lower set ofknives is dispensed with, using only the upper set when a specific pulpis to be operated upon.

I claim as my invention- 1. The combination, in a pulping-engine, of thetank, the disintegrating-roll B, and partitions 0 0', one on each sideof the roll, forming the mid-feather which separates the tank intopasses through the upper passage, substan tially as set forth.

3. The combination ofthe casing,a central disintegrating-roll therein,the horizontal midfeather on each side of the roll, forming upper andlower passages, one or both of the outer ends of the mid-feather beingat an angle, substantially as described.

4. The combination of the casing, a central mid-feather forming twopassages, and a disintegrating-roll mounted in the casing and projectinginto each passage with disintegrating-blades in each passage, acting onthe stock in conjunction with the roll, substantially as described.

5. The combination of the casing, the midfeather, the fixed lowerblades, the verticallymovable roll, the vertically-movable upper blades,and mechanism, substantially as described, whereby the carrier of theupper blades is connected to the roll, so that when the roll is raisedthe upper blades will be raised, substantially as described.

6. The combination of the casing, the midfeather separating the casinginto upper and lower passages, a roll extending into both passages,fixed lower blades, movable upper blades, boxes for the trunnions of theroll, levers connected to said boxes, levers connected to the upperblade-carrier, said levers being connected together, and mechanism forraising and lowering the rolls and blades, substantially as described.

7. The combination of the casing, the midfeather, a disintegrating-roll,bearings for the journals of said roll, the fixed lower blades, thevertically-movable upper blades, a lever on each side of the casing,linked to the bearings for the roll, a lever on each side of the casing,connected to the upper blade-carrier, connections between theroll-levers and the blade-levers, vertical screw-rods connected to saidlevers, nuts on said screw-rods having gear-teeth in the periphery, atransverse shaft, and worms on said transverse shaft gearing with theteeth of the said nuts, substantially as described.

8. The combination, in a pulping-engine, of the upper blade-casing,blades therein, fillingpieces between said blades, transversesecuring-pins for the said. blades, and eyebolts through which the pinspass,said bolts passing up through the box, with nuts adapted to saidbolts, substantially as described.

9. The combination,in apulping-engine, of the casing, the upper blades,box therefor mounted in said casing, and a disintegratingroll connectedto the box with springs or their equivalents situated between the casingand the box, said springs tending to raise the blade-box, substantiallyas described.

10. The combination of the casing, disintegrating-roll, vertical adjusting-rods connected to the bearings of said roll, adapted to guide-Ways on the casing, threaded worm-wheels on the bars, a transverseshaft, worms on the shaft, engaging with the worm-wheels, and bearingsfor said shaft mounted on the uprlght rods and resting on the guidestherefor, so that any accidental raisin g of the roll will not disengagethe gearing, but merely raise the bearings of the transverse shaft,substantially as described.

11. The combination of the casing, the dis integratingroller, bearingstherefor, levers connected to said bearings, upperdisintegrating-blades, carrier therefor, levers connected to saidcarrier, and connectionsbetween the roll-levers and the blade-levers,the fulcrum of the blade-leverbeing at a greater distance from itsWeight than the fulcrum of the roll-lever, whereby when the roll israised the blades will be moved a greater extent than the roll,substantially as described.

12. The combination of the casing, openings in the side of said casing,a disintegrating-roll, the trunnions of said roll extending through theopenings in said casing, flanged rings adapted to said trunnions,pivoted levers adapted to bear against said rings, and bolts for holdingthe levers against the ring with annular packing between each ring andthe casing, substantially as described.

13. The combination, in a pulping-engine, of the casing, thedisintegrating-roll, the upper knife-box situated above the roll, knivescontained in said box, and frames on each side of the knife-box, thelower portion of each frame being beveled toward the knives, so as toguide the stock thereunder, substantially as described.

14. The combination of the casing,dis1ntegrating-roll, the upperdisintegrating-knives

